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/*
* This file is part of the LinuxBIOS project.
*
* Copyright (C) 2007 Uwe Hermann <uwe@hermann-uwe.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include "i82371eb.h"
/**
* Initialize the IDE controller.
*
* Depending on the configuration variables 'ide0_enable' and 'ide1_enable'
* we enable or disable the primary and secondary IDE interface, respectively.
*
* @param dev The device to use.
*/
static void ide_init(struct device *dev)
{
uint16_t reg;
struct southbridge_intel_i82371eb_config *conf = dev->chip_info;
/* Enable/disable the primary IDE interface. */
reg = pci_read_config16(dev, IDETIM_PRI);
if (conf->ide0_enable) {
reg |= IDE_DECODE_ENABLE;
print_info("Primary IDE interface enabled\n");
} else {
reg &= ~(IDE_DECODE_ENABLE);
print_info("Primary IDE interface disabled\n");
}
pci_write_config16(dev, IDETIM_PRI, reg);
/* Enable/disable the secondary IDE interface. */
reg = pci_read_config16(dev, IDETIM_SEC);
if (conf->ide1_enable) {
reg |= IDE_DECODE_ENABLE;
print_info("Secondary IDE interface enabled\n");
} else {
reg &= ~(IDE_DECODE_ENABLE);
print_info("Secondary IDE interface disabled\n");
}
pci_write_config16(dev, IDETIM_SEC, reg);
}
static struct device_operations ide_ops = {
.read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.init = ide_init,
.scan_bus = 0,
.ops_pci = 0, /* No subsystem IDs on 82371EB! */
};
static struct pci_driver ide_driver __pci_driver = {
.ops = &ide_ops,
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_82371AB_IDE,
};
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